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drm/amdgpu: disable gfxoff if VCN is busy

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Toggle on/off gfxoff during video playback to fix gpu hang.

v2: change sequence to be more compatible with original code.

Signed-off-by: Jiansong Chen <Jiansong.Chen@amd.com>
Reviewed-by: James Zhu <James.Zhu@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Jiansong Chen
2020-10-30 19:23:07 +08:00
committed by Alex Deucher
parent 84aef2ab09
commit ef3b298725
1 changed files with 4 additions and 1 deletions
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5
drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c
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@@ -358,6 +358,7 @@ static void amdgpu_vcn_idle_work_handler(struct work_struct *work)
}
if (!fences && !atomic_read(&adev->vcn.total_submission_cnt)) {
amdgpu_gfx_off_ctrl(adev, true);
amdgpu_device_ip_set_powergating_state(adev, AMD_IP_BLOCK_TYPE_VCN,
AMD_PG_STATE_GATE);
} else {
@@ -370,7 +371,9 @@ void amdgpu_vcn_ring_begin_use(struct amdgpu_ring *ring)
struct amdgpu_device *adev = ring->adev;
atomic_inc(&adev->vcn.total_submission_cnt);
cancel_delayed_work_sync(&adev->vcn.idle_work);
if (!cancel_delayed_work_sync(&adev->vcn.idle_work))
amdgpu_gfx_off_ctrl(adev, false);
mutex_lock(&adev->vcn.vcn_pg_lock);
amdgpu_device_ip_set_powergating_state(adev, AMD_IP_BLOCK_TYPE_VCN,